Marvel went completely over the top while promoting Guardians of the Galaxy Vol. 2. Instead of sticking to traditional trailers and cast interviews, they brough

Marvel went completely over the top while promoting Guardians of the Galaxy Vol. 2. Instead of sticking to traditional trailers and cast interviews, they brought the stars together for a full-blown 1970s-inspired disco music video. The cast fully committed to the absurdity, embracing the retro cost…